One option would be to expose a hologram into photographic film (or ideally a photographic plate).
I also heard of people who wrote holograms into (or onto) plastic but I'm not sure if you need pulsed lasers to write those holograms.
A cool solution is to use a phase-only spatial light modulator, e.g. by Hamamatsu. The Hamamatsu device costs probably 5000 EUR but possibly you can use a normal LCD screen after you removed the polarizer foils.
The coolest solution (in my opinion) is to build an acousto optic deflector. There you use an ultrasound transducer to create a thick grating within some transparent crystal (but I think glass works as well). The laser light will be deflected. You can vary the angle of deflection by changing the frequency of the ultrasound. You can put two of these things behind each other. Then you can scan the beam in XY (like an oscilloscope). Note that this isn't really shaping the beam. But you can scan the beam very fast.
I always wondered if one could write a hologram on a DVD or Blue-Ray medium. If one understands the burners firmware good enough to put the data into specific places this might actually work. And 50Gb of information would make for some pretty detailed pictures.